CD Projekt RED has announced the release of a version 1.12 patch for The Witcher 3: Wild Hunt across all platforms, which introduces "over 70 changes to gameplay, quests, DLCs and Hearts of Stone." There's a full changelog here, which I've quoted below:

-Hearts of Stone-

'¢ Fixes issue whereby achievement titled Wild Rose Dethorned could not be completed. '¢ Fixes interaction on pickaxe in quest titled Enchanting: Quality Has Its Price. '¢ Fixes issue (in majority of contexts) whereby not all diagrams could be collected in quest titled From Ofier's Distant Shores. '¢ Fixes rare issue whereby some players were prevented from spreading smoke throughout all rooms in crypt during quest titled Dead Man's Party. '¢ Fixes issue whereby book merchant named Marcus T.K. Hodgson failed to appear in market square in Novigrad. '¢ Fixes rare issue whereby some Knights of the Flaming Rose in quest titled Open Sesame! in Hearts of Stone expansion could not be killed. '¢ Introduces a number of improvements to general game performance. '¢ Fixes issue whereby treasure hunt titled The Drakenborg Redemption remained in Journal despite completion of all objectives. '¢ Fixes issue whereby swapping of enchanted gear within Inventory granted permanent bonuses to statistics. '¢ Fixes issue whereby treasure hunt titled The Royal Air Force remained in Journal despite completion of all objectives. '¢ Fixes issue whereby players could not eavesdrop on guards during quest titled Witcher Seasonings in Hearts of Stone expansion. '¢ Fixes issue whereby some players could not talk to Shani at certain juncture of quest titled Dead Man's Party in Hearts of Stone expansion. '¢ Introduces a series of minor difficulty balance tweaks at all difficulty levels in Hearts of Stone expansion. '¢ Fixes rare issue whereby inebriation effect would persist on screen after quest titled Dead Man's Party in Hearts of Stone expansion. '¢ Fixes issue whereby phase titled Enchanting: Start-up Costs would remain in Journal after Enchanter was paid relevant amount. '¢ Fixes incorrect Stamina bonus granted for Caparison of Lament in New Game + mode. '¢ Fixes incorrect mesh appearing on Viper School swords in New Game + mode.

'¢ Fixes issue whereby items in merchants' stores could not be compared to currently equipped items. '¢ Fixes exploit whereby some items (runes, glyphs) could be upgraded infinitely. '¢ Introduces UI enhancement whereby herb name is now displayed above available interaction. '¢ Fixes issue whereby keys/controls (mouse and keyboard) were not unbound from current setting when attempted. '¢ Fixes issue whereby Toggle HUD button would not always work correctly during set scenes. '¢ Introduces enhancement whereby ingredients required for a pinned formula and in possession of a merchant are now highlighted in said merchant's Shop screen. '¢ Improves quest tracking by enabling tracking of objectives across different game regions. '¢ Fixes issue whereby Witcher Medallion and statistics bar could disappear if game difficulty level was changed during combat. '¢ Introduces enhancement on PC systems whereby weapon and armor repair kits can now be applied via drag and drop. '¢ Fixes issue on PC systems whereby toggling HUD did not work correctly on QWERTZ and AZERTY keyboard configurations.